US3161223A - Sheet metal brake - Google Patents

Sheet metal brake Download PDF

Info

Publication number
US3161223A
US3161223A US315038A US31503863A US3161223A US 3161223 A US3161223 A US 3161223A US 315038 A US315038 A US 315038A US 31503863 A US31503863 A US 31503863A US 3161223 A US3161223 A US 3161223A
Authority
US
United States
Prior art keywords
sheet metal
clamping
projections
brake
hinge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US315038A
Other languages
English (en)
Inventor
Walter G Marsh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23222594&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US3161223(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to US315038A priority Critical patent/US3161223A/en
Priority to DE19641452775 priority patent/DE1452775A1/de
Priority to BE654117D priority patent/BE654117A/xx
Application granted granted Critical
Publication of US3161223A publication Critical patent/US3161223A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/04—Bending sheet metal along straight lines, e.g. to form simple curves on brakes making use of clamping means on one side of the work
    • B21D5/042—With a rotational movement of the bending blade

Definitions

  • This invention relates to a brake for forming sheet metal such as aluminum coil stock.
  • a brake for bending and forming sheet metal such as aluminum coil stock may comprise a pair of members which are hinged to one another by a hinge such as a piano hinge having the leaves thereof fixed to the respective members.
  • a major problem is that extreme difficulty is encountered in aligning the hinge leaves with respect to the longitudinal edges of the first and second members. This inaccuracy not only results in an improper bend but, in addition, mars the surface of the sheet metal where it is coated with an enamel or other coating.
  • FIG. 1 is a fragmentary perspective view of a brake embodying the invention.
  • FIG. 2 is a fragmentary plan view of a portion of the brake shown in FIG. 1.
  • FIG. 3 is a fragmentary end view of a portion of the brake shown in FIG- 1.
  • the brake embodying the invention comprises a pair of channel shaped rails 10, 11 formed of aluminum extrusions and longitudinally spaced C shaped members 13 fixed on rails 10, 11.
  • Each C shaped member 13 includes a lower arm 14 which is fixed by screws to the rails 10, 11 and an upper arm 15 that overlies the lower arm 14 in spaced relation thereto.
  • a first member 16 in the form of a channel shaped aluminum extrusion is fixed on the lower leg 14 and a second channel shaped aluminum extrusion 17 is hinged thereto in accordance with the invention.
  • channel shaped members 16, 17 are formed with mating integral projections 18, 19 along their longitudinal edges that are made by machining the edges along fiat transverse planes.
  • the projections are provided with openings 20, 21 that are formed during the extrusion process and are aligned when the projections 18, 1? are intermeshed.
  • a pin 22 extends through the openings to complete the hinge. In this manner, swingable member 17 is hinged to member 16 along an accurate axis.
  • An anvil plate or member 23 is provided in overlying relation to the base 24 of member 16 to clamp a piece of sheet metal S against the fiat surface 24a in clamping relation, as shown in FIG. 3.
  • Anvil member 23 includes a sharp edge 25 adjacent the sheet metal S and a tapered surface 2d tapering away from the edge 25.
  • Means are provided for selectively clamping the anvil member 23 in position and comprises a backing plate 27 having inclined earns 28 thereon in underlying relation to the upper arm 15.
  • Plate 27 is loosely mounted over the anvil member and is adapted to be moved longitudinally of the anvil member by a lever 29 that is pivoted to a block 30 on the plate 27.
  • the lower end of the lever 29 is connected by link 31 to the lower arm 14.
  • Spring plates 32 are fixed to the upper arm 15 and extend between brackets 33 fixed on the anvil member 23 to tend to elevate the backing plate when the cam block 28 is moved to the right as viewed in FIG. 1 to relieve the clamping pressure on anvil member 23.
  • the lever 29 When a piece of sheet metal is to be bent, the lever 29 is swung to relieve the clamping pressure and elevate the backing plate 27. The sheet metal is inserted in proper position between member 16 and anvil member 23 and the lever 29 is actuated to clamp the sheet metal.
  • a brake for bending sheet metal comprising a first member having a clamping surface
  • each of said first and second members having substantially the entire length of the longitudinal edges thereof formed with longitudinally spaced intermeshing integral projections
  • each said projection of each said member being positioned such that all portions thereof do not extend above the plane of the surface of its corresponding member when the surfaces are substantially aligned
  • a hinge pin extending through said integral projections and thereby defining a hinge so that said second member may be swung relative to the first member for bending sheet metal about said anvil member.
  • each said projection includes flat transverse surfaces on the ends thereof.
  • each said member is generally channel shaped in cross section.
  • each said O shaped member comprising a lower arm fixed to said rails and an upper arm spaced from and overlying said lower arm,
  • first and second members having longitudinally spaced integral intermeshing projections extending outwardly along substantially the entire length of the longitudinal edges thereof
  • each said projection of each said member being positioned such that all portions thereof do not extend above the plane of the surface of its corresponding member when the surfaces are substantially aligned
  • a hinge pin extending through said openings to define a hinge
  • said anvil member having a longitudinal edge extending along said hinge line
  • said means for clamping said anvil member against said first member including cam means between said upper arms of said 6 shaped members and said anvil member.
  • the combination 7 comprising a first metal extrusion 'member having a clamping surface, means for clamping'a piece of nietal'against said clamp-v ing surface of said first member, r a second inetal extrusion member having surface, i I each of said first and secondmember having. substantially the entire length of the longitudinal edges formed with intermeshing integral projections,
  • each said projection of each saidt member being positioned such that all portionsthereo'f dornot extend above the plane of the surface of itscorresponding v member when the surfaces'are substantially aligned, said projections having aligned extruded openings therein, a hinge pin extending-through said integral projections and thereby defining a hinge to swing the second,
  • a brake for 'bendingsheet metal the combination comprising i 1 V j I a pair of spaced extruded metal base rails, I a plurality of -C shaped members positioned on said base rails at longitudinally spaced points, I
  • each said 0 shaped member comprising a lower arm I fixed tosaid rails and an upper arm spacedrfrorn and overlying said lower arm, a a a a first extruded metal member fixed on the lower arms face, an extruded metal anvil member, means for locking said anvil member, on said first memher to clamp a piece of sheet metalxbetween said 36' of said C shaped members and having a clamping suranvil member and said clamping surface of said first member,
  • each said projection of each said member being posi- V tioned such that all portions thereof do not extend above the planeof the surface of its corresponding member when the surfaces are substantially aligned, said projections having aligned openings, a hinge pin extending through said openings to define a g r said anvil member having a longitudinal edge extending along said hinge line, said means for clamping said anvil member against said first member including Cami means betweenvsaid upper arms of said 0 shaped members and said anvil member.
  • each of said first and second members having substan-' tially the entire length of the longitudinal edges thereof formed with longitudinally spaced intermeshing integral projections
  • eachsaidprojection of each said member having a surface thereof lying in the plane of the flat surface of its corresponding member, I V i said projections having aligned openings therein, and'a hinge pin extendingthrough' said integral projecs tions andthereby defining a hinge so that said second member may be swung relative to said first member to bend said metal about said-anvil member.
US315038A 1963-10-09 1963-10-09 Sheet metal brake Expired - Lifetime US3161223A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US315038A US3161223A (en) 1963-10-09 1963-10-09 Sheet metal brake
DE19641452775 DE1452775A1 (de) 1963-10-09 1964-09-29 Einrichtung zum Halten und Biegen von Metallband
BE654117D BE654117A (xx) 1963-10-09 1964-10-08

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US315038A US3161223A (en) 1963-10-09 1963-10-09 Sheet metal brake

Publications (1)

Publication Number Publication Date
US3161223A true US3161223A (en) 1964-12-15

Family

ID=23222594

Family Applications (1)

Application Number Title Priority Date Filing Date
US315038A Expired - Lifetime US3161223A (en) 1963-10-09 1963-10-09 Sheet metal brake

Country Status (3)

Country Link
US (1) US3161223A (xx)
BE (1) BE654117A (xx)
DE (1) DE1452775A1 (xx)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3481174A (en) * 1967-06-19 1969-12-02 Henry C Barnack Sheet metal brake
US3482427A (en) * 1968-05-06 1969-12-09 Henry C Barnack Sheet metal brake
US3592037A (en) * 1969-01-27 1971-07-13 Mark Products Corp Van Sheet metal bending brake
US3817075A (en) * 1973-03-01 1974-06-18 Tapco Products Co Sheet metal brake
US3877279A (en) * 1972-10-30 1975-04-15 Mark Products Corp Van Sheet metal brake
US3948074A (en) * 1974-12-09 1976-04-06 Lion Services, Inc. Combination cleat bender and bar folder apparatus
FR2442086A1 (fr) * 1978-11-27 1980-06-20 Tapco Products Co Machoire de pliage d'une matiere en feuille
US4364254A (en) * 1980-09-08 1982-12-21 Tapco Products Company, Inc. Combined sheet bending brake, table and coil support
US4489583A (en) * 1982-03-18 1984-12-25 Tapco Products Company, Inc. Portable sheet bending brake
US4494397A (en) * 1982-03-18 1985-01-22 Tapco Products Company, Inc. Portable sheet bending brake
US4592518A (en) * 1982-02-26 1986-06-03 Tapco Products Company, Inc. Coil holder
US4651553A (en) * 1982-03-18 1987-03-24 Tapco Products Company, Inc. Portable sheet bending brake
US4671094A (en) * 1985-10-28 1987-06-09 Tapco Products Company, Inc. Portable sheet bending brake
US4756500A (en) * 1987-06-02 1988-07-12 Baker Charles F Support device for a work tool
US5353620A (en) * 1993-08-25 1994-10-11 Tapco Products Company, Inc. Portable sheet bending brake
US5505069A (en) * 1994-06-06 1996-04-09 Tapco International Corporation Sheet bending brake
US5582053A (en) * 1994-09-22 1996-12-10 Tapco International Corporation Combined portable sheet bending brake and cutter
US5657662A (en) * 1995-07-25 1997-08-19 Kariofyllis; Daniel Bending brake platform
US5706692A (en) * 1996-03-06 1998-01-13 Tapco International Corporation Combined portable sheet bending brake, coil holder and cut-off mechanism
US6038909A (en) * 1998-07-17 2000-03-21 Zink; Joe M. Portable sheet metal brake
US6389864B1 (en) 1991-11-26 2002-05-21 Tapco International Corporation Heavy duty sheet bending brake
US8627701B1 (en) 2012-08-30 2014-01-14 Robert W. Gatchell Device for bending sheet material
USD830431S1 (en) * 2017-12-20 2018-10-09 Thomas L. Gharst Power cleat bender

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US134376A (en) * 1872-12-31 Improvement in machines for bending sheet metals
US391408A (en) * 1888-10-23 John fitzbeegee
US1030259A (en) * 1912-02-09 1912-06-18 Walker Wells Company Machine for bending metallic plates.
DE300479C (xx) * 1913-10-04 1917-09-06
US2687162A (en) * 1950-06-29 1954-08-24 Smith Corp A O Metal bending tool

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US134376A (en) * 1872-12-31 Improvement in machines for bending sheet metals
US391408A (en) * 1888-10-23 John fitzbeegee
US1030259A (en) * 1912-02-09 1912-06-18 Walker Wells Company Machine for bending metallic plates.
DE300479C (xx) * 1913-10-04 1917-09-06
US2687162A (en) * 1950-06-29 1954-08-24 Smith Corp A O Metal bending tool

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3481174A (en) * 1967-06-19 1969-12-02 Henry C Barnack Sheet metal brake
US3482427A (en) * 1968-05-06 1969-12-09 Henry C Barnack Sheet metal brake
US3592037A (en) * 1969-01-27 1971-07-13 Mark Products Corp Van Sheet metal bending brake
US3877279A (en) * 1972-10-30 1975-04-15 Mark Products Corp Van Sheet metal brake
US3817075A (en) * 1973-03-01 1974-06-18 Tapco Products Co Sheet metal brake
US3948074A (en) * 1974-12-09 1976-04-06 Lion Services, Inc. Combination cleat bender and bar folder apparatus
FR2442086A1 (fr) * 1978-11-27 1980-06-20 Tapco Products Co Machoire de pliage d'une matiere en feuille
US4364254A (en) * 1980-09-08 1982-12-21 Tapco Products Company, Inc. Combined sheet bending brake, table and coil support
US4592518A (en) * 1982-02-26 1986-06-03 Tapco Products Company, Inc. Coil holder
US4489583A (en) * 1982-03-18 1984-12-25 Tapco Products Company, Inc. Portable sheet bending brake
US4494397A (en) * 1982-03-18 1985-01-22 Tapco Products Company, Inc. Portable sheet bending brake
US4651553A (en) * 1982-03-18 1987-03-24 Tapco Products Company, Inc. Portable sheet bending brake
US4671094A (en) * 1985-10-28 1987-06-09 Tapco Products Company, Inc. Portable sheet bending brake
US4756500A (en) * 1987-06-02 1988-07-12 Baker Charles F Support device for a work tool
US6389864B1 (en) 1991-11-26 2002-05-21 Tapco International Corporation Heavy duty sheet bending brake
US5353620A (en) * 1993-08-25 1994-10-11 Tapco Products Company, Inc. Portable sheet bending brake
US5505069A (en) * 1994-06-06 1996-04-09 Tapco International Corporation Sheet bending brake
US5582053A (en) * 1994-09-22 1996-12-10 Tapco International Corporation Combined portable sheet bending brake and cutter
US5706693A (en) * 1994-09-22 1998-01-13 Tapco International Corporation Combined sheet bending brake and cutter
US5657662A (en) * 1995-07-25 1997-08-19 Kariofyllis; Daniel Bending brake platform
US5706692A (en) * 1996-03-06 1998-01-13 Tapco International Corporation Combined portable sheet bending brake, coil holder and cut-off mechanism
US6038909A (en) * 1998-07-17 2000-03-21 Zink; Joe M. Portable sheet metal brake
US8627701B1 (en) 2012-08-30 2014-01-14 Robert W. Gatchell Device for bending sheet material
WO2014036418A2 (en) 2012-08-30 2014-03-06 Gatchell Robert W Device for bending sheet material
USD830431S1 (en) * 2017-12-20 2018-10-09 Thomas L. Gharst Power cleat bender

Also Published As

Publication number Publication date
BE654117A (xx) 1965-02-01
DE1452775A1 (de) 1969-04-24

Similar Documents

Publication Publication Date Title
US3161223A (en) Sheet metal brake
US3817075A (en) Sheet metal brake
US3559444A (en) Brake for bending sheet material
US4240279A (en) Sheet metal brake
DE2523087C3 (de) Vorrichtung zum Befestigen eines Schneefangrohrs
DE2318580B2 (de) Glühlampe und Verfahren zum Herstellen derselben
US3948074A (en) Combination cleat bender and bar folder apparatus
US2141736A (en) Offset die
US2159784A (en) Apparatus for use in forming pittsburgh joints
US2268628A (en) Machine for bending metal gutter hangers
US3691815A (en) Method and apparatus for bending tubing
US3592037A (en) Sheet metal bending brake
US4829806A (en) Variable tube offset bender
US3383899A (en) Bending brake
US2347390A (en) Hand beading tool
DE4345201C2 (de) Abkantvorrichtung für Flacheisen
US4959909A (en) Contour tracer
US704521A (en) Metal-bending tool.
JPH0122059B2 (xx)
US3135312A (en) Gutter outlet bender
DE966718C (de) Vorrichtung zur werkstattmaessigen Herstellung fertiggebogener Leiterbuendel
US1990079A (en) Press for bending tooth backing plates
US3996777A (en) Press brake work piece alignment apparatus
ES441629A1 (es) Perfeccionamientos en utillajes para la fabricacion de per- filados.
DE750899C (de) Welldrahtbiegevorrichtung zum Herstellen von im Bogen gekruemmtem Welldraht mittels eines geteilten Pressgesenkes